Robust ICA for Super-Gaussian Sources

نویسندگان

  • Frank C. Meinecke
  • Stefan Harmeling
  • Klaus-Robert Müller
چکیده

Most ICA algorithms are sensitive to outliers. Instead of robustifying existing algorithms by outlier rejection techniques, we show how a simple outlier index can be used directly to solve the ICA problem for super-Gaussian source signals. This ICA method is outlier-robust by construction and can be used for standard ICA as well as for overcomplete ICA (i.e. more source signals than observed signals (mixtures)).

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تاریخ انتشار 2004